Rachitic Changes of the Mandibular Condyle of the Rat

Abstract

In this investigation, 14 white rats were kept on a rachitogenic diet for 7 wks. after weaning and litter-mates of the same age on a balanced diet. The rachitic changes of the condyle were analogous to the rachitic changes in the epiphyseal plate. The growth cartilage in the condyle is increased in thickness and the condyle itself is club-shaped. Both phenomena are interpreted as the consequence of lack of calcification of the cartilage and the osteoid tissue, and their consecutive resistance to resorption.